/* ========================================
   足智澳彩 - 网站样式表
   版本: 20260605
   说明: 响应式设计，支持桌面端和移动端
   ======================================== */

/* ==================== 基础重置样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    height: 100%;
}

/* 页面主体样式 - 背景图设置 */
body {
    font-family: 'Microsoft YaHei', 'SimSun', Arial, sans-serif;  /* 字体：微软雅黑优先 */
    background: #0a1428 url('../BJSaaS.png') no-repeat center center fixed;  /* 深蓝背景 + 背景图居中固定 */
    background-size: auto;  /* 背景图保持原始尺寸 */
    min-height: 100vh;  /* 最小高度为视口高度 */
    color: #333;  /* 默认文字颜色 */
    line-height: 1.6;  /* 行高 */
    position: relative;
}

/* 背景遮罩层 - 增加文字可读性 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 20, 40, 0.35);  /* 半透明深色遮罩 */
    z-index: -1;
}

/* ==================== 容器样式 ==================== */
.container {
    max-width: 1200px;  /* 最大宽度1200px */
    margin: 0 auto;  /* 水平居中 */
    padding: 0 15px;  /* 左右内边距 */
}

/* ==================== 页头导航样式 ==================== */
.header {
    background: linear-gradient(135deg, #204182 0%, #0a1830 100%);  /* 蓝色渐变背景 */
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);  /* 底部阴影 */
    position: sticky;  /* 粘性定位 */
    top: 0;
    z-index: 1000;  /* 置顶显示 */
}

.header-content {
    display: flex;
    justify-content: space-between;  /* 两端对齐 */
    align-items: center;  /* 垂直居中 */
    padding: 15px 0;
}

/* Logo链接样式 */
.header .logo a {
    color: #fff;
    font-size: 26px;
    font-weight: bold;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;  /* 图标与文字间距 */
}

/* Logo图标样式 */
.header .logo .logo-icon {
    width: 45px;
    height: 45px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Logo文字样式 - 金色立体效果 */
.header .logo .logo-text {
    font-size: 36px;  /* 字体大小 */
    font-weight: bold;
    text-shadow: 
        0 1px 0 #ffd700,    /* 第1层：亮金高光 */
        0 2px 0 #d4a800,    /* 第2层：金色深度 */
        0 3px 0 #9c7c00,    /* 第3层：深金底部 */
        0 4px 8px rgba(0, 0, 0, 0.4);  /* 第4层：深色投影 */
    color: #ffd700;  /* 金色文字 */
}

/* ==================== 导航菜单样式 ==================== */
.nav {
    display: flex;
    gap: 5px;  /* 导航项间距 */
}

/* 导航链接样式 */
.nav a {
    display: block;
    padding: 12px 25px;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 5px;
    transition: all 0.3s ease;  /* 过渡动画 */
    background: rgba(255,255,255,0.1);  /* 半透明白色背景 */
    margin: 0 3px;
}

/* 导航链接悬停和激活状态 */
.nav a:hover,
.nav a.active {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);  /* 向上移动2px */
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* ==================== 移动端导航切换按钮 ==================== */
.nav-toggle {
    display: none;  /* 默认隐藏，移动端显示 */
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

/* 汉堡菜单的三条横线 */
.nav-toggle span {
    width: 100%;
    height: 3px;
    background: #fff;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 汉堡菜单打开状态 - 第一条线旋转 */
.nav-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

/* 汉堡菜单打开状态 - 第二条线隐藏 */
.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

/* 汉堡菜单打开状态 - 第三条线旋转 */
.nav-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* 页头顶部区域（备用） */
.header-top {
    background: rgba(0,0,0,0.2);
    padding: 8px 0;
    font-size: 12px;
    color: #fff;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-main {
    padding: 15px 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo容器（备用） */
.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    height: 50px;
}

.logo-text {
    color: #fff;
}

.logo-text h1 {
    font-size: 24px;
    font-weight: bold;
    margin: 0;
}

.logo-text p {
    font-size: 12px;
    opacity: 0.8;
    margin: 0;
}

/* 导航菜单列表（备用） */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 5px;
}

.nav-menu li a {
    display: block;
    padding: 12px 25px;
    color: #fff;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background: rgba(255,255,255,0.2);
}

/* ==================== 主内容区域 ==================== */
.main-content {
    padding: 30px 0;
}

/* ==================== 站点介绍卡片 ==================== */
.site-intro {
    background: rgba(255, 255, 255, 0.92);  /* 半透明白色背景 */
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.2);
    padding: 25px 30px;
    margin-bottom: 25px;
    border-left: 5px solid #1e3c72;  /* 左侧蓝色边框 */
}

.intro-content {
    font-size: 16px;
    line-height: 1.8;
    color: #333;
}

.intro-content p {
    margin-bottom: 15px;
    text-align: justify;  /* 两端对齐 */
}

.intro-content p:last-child {
    margin-bottom: 0;
}

/* 联系方式高亮区域 */
.intro-contact {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    padding: 15px 20px;
    border-radius: 8px;
    font-size: 17px;
    text-align: center;
    margin-top: 20px;
}

.intro-contact strong {
    color: #ffd700;  /* 金色强调 */
    font-size: 18px;
}

/* 内容布局网格 */
.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 300px;  /* 主内容 + 侧边栏 */
    gap: 30px;
}

/* ==================== 通用卡片样式 ==================== */
.card {
    background: rgba(255, 255, 255, 0.92);  /* 半透明白色 */
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.2);
    overflow: hidden;
}

/* 卡片头部 */
.card-header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    padding: 15px 20px;
    color: #fff;
    font-size: 16px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header .icon {
    font-size: 20px;
}

/* 卡片内容区 */
.card-body {
    padding: 20px;
}

/* ==================== 数据表格样式 - 表格布局 ==================== */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

/* 表头样式 */
.data-table th {
    background: #f5f7fa;
    padding: 12px 10px;
    text-align: center;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #1e3c72;
}

/* 表格单元格 */
.data-table td {
    padding: 12px 10px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

/* 表格行悬停效果 */
.data-table tr:hover {
    background: #f8f9ff;
}

/* 赢 - 红色 */
.data-table .win {
    color: #e74c3c;
    font-weight: bold;
}

/* 输 - 绿色 */
.data-table .lose {
    color: #27ae60;
}

/* 走水 - 橙色 */
.data-table .draw {
    color: #f39c12;
}

/* ==================== 友情链接区域 ==================== */
.friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.friend-links a {
    padding: 6px 12px;
    text-decoration: none;
    color: #333;
    background: #f5f7fa;
    border-radius: 5px;
    font-size: 13px;
    transition: all 0.3s ease;
}

.friend-links a:hover {
    background: #1e3c72;
    color: #fff;
    transform: translateY(-2px);
}

/* 红色链接 */
.friend-links a.link-red {
    color: #e74c3c;
}

.friend-links a.link-red:hover {
    background: #e74c3c;
    color: #fff;
}

/* 绿色链接 */
.friend-links a.link-green {
    color: #27ae60;
}

.friend-links a.link-green:hover {
    background: #27ae60;
    color: #fff;
}

/* ==================== 数据网格样式 - DIV布局 ==================== */
.data-grid {
    width: 100%;
    font-size: 14px;
    border-radius: 8px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95);
}

/* 数据网格头部 - 7列布局 */
.data-grid-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);  /* 7等分列 */
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
    font-weight: 600;
}

.data-grid-header > div {
    padding: 14px 10px;
    text-align: center;
    font-size: 14px;
    border-right: 1px solid rgba(255,255,255,0.1);
}

.data-grid-header > div:last-child {
    border-right: none;
}

/* 数据网格主体 */
.data-grid-body {
    display: flex;
    flex-direction: column;
}

/* 数据网格行 */
.data-grid-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);  /* 7等分列 */
    align-items: center;
    border-bottom: 1px solid #eee;
    transition: background-color 0.2s ease;
}

.data-grid-row:hover {
    background: #f8f9ff;
}

.data-grid-row > div {
    padding: 12px 10px;
    text-align: center;
}

/* 推荐球队列 - 蓝色加粗 */
.data-grid-row .col-team {
    color: #085789;
    font-weight: bold;
}

/* 结果标签样式 */
.data-grid-row .col-result .tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}

/* 数据为空时的提示 */
.data-grid-empty {
    padding: 30px;
    text-align: center;
    color: #999;
    font-size: 14px;
}

/* ==================== 侧边栏样式 ==================== */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.sidebar-card {
    background: rgba(255, 255, 255, 0.92);
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.2);
    overflow: hidden;
}

.sidebar-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);  /* 紫色渐变 */
    padding: 12px 15px;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
}

.sidebar-body {
    padding: 15px;
}

.sidebar-links {
    list-style: none;
}

.sidebar-links li {
    padding: 8px 0;
    border-bottom: 1px dashed #eee;  /* 虚线分隔 */
}

.sidebar-links li:last-child {
    border-bottom: none;
}

.sidebar-links a {
    color: #333;
    text-decoration: none;
    font-size: 13px;
    transition: color 0.3s;
}

.sidebar-links a:hover {
    color: #1e3c72;
}

/* ==================== 统计数据网格 ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);  /* 4列布局 */
    gap: 15px;
    margin-bottom: 20px;
}

/* 统计汇总区域 */
.stats-summary {
    margin-top: 20px;
    padding: 15px 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    border-radius: 8px;
    text-align: center;
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    font-size: 14px;
    color: #333;
}

.stats-summary span {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.stats-summary strong {
    font-size: 18px;
    color: #1e3c72;
    font-weight: bold;
    margin: 0 3px;
}

.stats-summary .stat-highlight {
    color: #e74c3c;  /* 红色高亮 */
}

/* 统计汇总 - 移动端响应式 */
@media (max-width: 768px) {
    .stats-summary {
        gap: 15px;
        padding: 12px 15px;
        font-size: 13px;
        flex-direction: column;
        align-items: center;
    }
    
    .stats-summary strong {
        font-size: 16px;
    }
}

/* 统计项卡片 */
.stat-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    color: #fff;
}

.stat-item .number {
    font-size: 28px;
    font-weight: bold;
}

.stat-item .label {
    font-size: 12px;
    opacity: 0.9;
    margin-top: 5px;
}

/* ==================== 登录表单样式 ==================== */
.login-box {
    text-align: left;
    padding: 15px 20px;
}

.login-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 15px;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding-bottom: 10px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 单行表单布局 */
.login-row-single {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    flex-wrap: nowrap;
}

/* 双列表单布局 */
.login-row-double {
    display: flex;
    gap: 15px;
}

/* 表单字段 */
.login-field {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 0 0 auto;
}

.login-field label {
    font-size: 12px;
    white-space: nowrap;
}

.login-field input {
    flex: 1;
    padding: 5px 6px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    font-size: 12px;
    background: rgba(255,255,255,0.9);
    color: #333;
    min-width: 0;
    max-width: 80px;
}

.login-field input:focus {
    outline: none;
    border-color: #fff;
    background: #fff;
}

/* 验证码行 */
.login-row-vcode {
    display: flex;
    align-items: center;
    gap: 10px;
}

.login-field-vcode {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 0 0 auto;
}

.login-field-vcode label {
    font-size: 12px;
    white-space: nowrap;
}

.login-field-vcode input {
    width: 50px;
    padding: 5px 6px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    font-size: 12px;
    background: rgba(255,255,255,0.9);
    color: #333;
}

.login-field-vcode input:focus {
    outline: none;
    border-color: #fff;
    background: #fff;
}

/* 验证码图片 */
.vcode-img {
    width: 65px;
    height: 26px;
    cursor: pointer;
    border-radius: 3px;
}

/* 登录按钮 */
.login-btn {
    padding: 6px 20px;
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);  /* 红色渐变 */
    color: #fff;
    border: none;
    border-radius: 5px;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

/* ==================== 公告栏样式 ==================== */
.notice-bar {
    background: #fff3cd;  /* 黄色背景 */
    padding: 10px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.notice-bar marquee {
    color: #856404;
    font-size: 13px;
}

/* ==================== 页脚样式 ==================== */
.footer {
    background: #1e3c72;
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);  /* 3列布局 */
    gap: 30px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 16px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(255,255,255,0.2);
}

.footer-section p,
.footer-section li {
    font-size: 13px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: #fff;
    text-decoration: none;
}

.footer-section a:hover {
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 12px;
    opacity: 0.7;
}

/* ==================== 按钮样式 ==================== */
.btn {
    display: inline-block;
    padding: 10px 25px;
    border: none;
    border-radius: 5px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
}

/* 主要按钮 - 蓝色 */
.btn-primary {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(30,60,114,0.4);
}

/* 成功按钮 - 绿色 */
.btn-success {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: #fff;
}

/* 警告按钮 - 橙红色 */
.btn-warning {
    background: linear-gradient(135deg, #f39c12 0%, #e74c3c 100%);
    color: #fff;
}

/* ==================== 标签样式 ==================== */
.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 3px;
    font-size: 12px;
    font-weight: 500;
}

/* 赢标签 - 红色 */
.tag-win {
    background: #e74c3c;
    color: #fff;
}

/* 输标签 - 绿色 */
.tag-lose {
    background: #27ae60;
    color: #fff;
}

/* 走水标签 - 灰色 */
.tag-draw {
    background: #555;
    color: #fff;
}

/* ==================== 分页样式 ==================== */
.pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 20px;
}

.pagination a {
    display: block;
    padding: 8px 15px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 5px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
}

.pagination a:hover,
.pagination a.active {
    background: #1e3c72;
    color: #fff;
    border-color: #1e3c72;
}

/* ==================== 响应式布局 - 平板端 ==================== */
@media (max-width: 992px) {
    .content-wrapper {
        grid-template-columns: 1fr;  /* 单列布局 */
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);  /* 2列统计 */
    }
    
    .footer-content {
        grid-template-columns: 1fr;  /* 单列页脚 */
    }
}

/* ==================== 响应式布局 - 移动端 ==================== */
@media (max-width: 768px) {
    /* 显示导航切换按钮 */
    .nav-toggle {
        display: flex;
    }
    
    /* 导航菜单变为垂直布局 */
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
        flex-direction: column;
        padding: 15px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.3);
    }
    
    .nav.open {
        display: flex;
    }
    
    .nav a {
        padding: 15px 20px;
        border-radius: 5px;
        text-align: center;
    }
    
    .header-main .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-menu li a {
        padding: 8px 15px;
        font-size: 13px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;  /* 单列统计 */
    }
    
    /* 数据网格移动端适配 - 横向滚动 */
    .data-grid-header {
        display: none;  /* 隐藏表头 */
    }
    
    .data-grid-body {
        display: flex;
        flex-direction: column;
        gap: 0;
    }
    
    .data-grid-row {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;  /* 横向滚动 */
        -webkit-overflow-scrolling: touch;
        background: #fff;
        border-bottom: 1px solid #eee;
        min-width: 100%;
        scrollbar-width: thin;
        scrollbar-color: #ccc transparent;
    }
    
    /* 自定义滚动条 */
    .data-grid-row::-webkit-scrollbar {
        height: 3px;
    }
    
    .data-grid-row::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 3px;
    }
    
    .data-grid-row > div {
        flex: 1 1 auto;
        min-width: 0;
        padding: 10px 4px;
        text-align: center;
        font-size: 12px;
        white-space: nowrap;
        border-right: 1px solid #f0f0f0;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .data-grid-row > div:last-child {
        border-right: none;
    }
    
    .data-grid-row > div::before {
        display: none;
    }
    
    .data-grid-row .col-team {
        color: #085789;
        font-weight: bold;
    }
    
    .data-grid-row .col-result .tag {
        font-size: 11px;
        padding: 3px 8px;
    }
    
    /* 登录表单移动端适配 */
    .login-row-single {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    
    .login-field,
    .login-field-vcode {
        justify-content: space-between;
    }
    
    .login-field input,
    .login-field-vcode input {
        max-width: 100%;
    }
    
    .login-btn {
        width: 100%;
        padding: 12px;
    }
    
    /* 站点介绍移动端适配 */
    .site-intro {
        padding: 15px;
    }
    
    .intro-content {
        font-size: 14px;
        line-height: 1.7;
    }
    
    .intro-contact {
        font-size: 14px;
        padding: 12px 15px;
    }
    
    .intro-contact strong {
        font-size: 15px;
    }
    
    /* 卡片移动端适配 */
    .card-header {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .card-body {
        padding: 12px;
    }
    
    /* 月份选择器移动端适配 */
    .month-selector {
        gap: 6px;
    }
    
    .month-selector a {
        padding: 6px 12px;
        font-size: 12px;
    }
    
    /* 内容区域移动端适配 */
    .card-body > div[style*="display: flex"] {
        gap: 10px;
    }
    
    /* Logo移动端适配 */
    .logo-text {
        font-size: 18px;
    }
    
    .header .logo .logo-text {
        font-size: 24px;
    }
    
    .logo img,
    .header .logo .logo-icon {
        width: 35px;
        height: 35px;
    }
    
    /* 页脚移动端适配 */
    .footer {
        padding: 25px 0 15px;
        margin-top: 30px;
    }
    
    .footer-bottom {
        font-size: 11px;
    }
}

/* ==================== 加载动画 ==================== */
.loading {
    text-align: center;
    padding: 50px;
}

.loading img {
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;  /* 旋转动画 */
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ==================== 月份选择器 ==================== */
.month-selector {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.month-selector a {
    padding: 8px 20px;
    background: #f5f7fa;
    border-radius: 5px;
    color: #333;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s;
}

.month-selector a:hover,
.month-selector a.active {
    background: #1e3c72;
    color: #fff;
}

/* ==================== 介绍页面样式 ==================== */
.intro-section {
    padding: 30px;
}

.intro-section h2 {
    color: #1e3c72;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1e3c72;
}

.intro-section p {
    margin-bottom: 15px;
    line-height: 1.8;
}

/* 特色功能列表 */
.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);  /* 2列布局 */
    gap: 20px;
    margin-top: 30px;
}

.feature-item {
    background: #f5f7fa;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
}

.feature-item .icon {
    font-size: 40px;
    margin-bottom: 10px;
}

.feature-item h3 {
    color: #1e3c72;
    margin-bottom: 10px;
}

/* 特色功能列表移动端适配 */
@media (max-width: 768px) {
    .feature-list {
        grid-template-columns: 1fr;  /* 单列布局 */
    }
}